Guillaume Delbergue
Verified Expert in Engineering
DevOps, SRE, and Software Developer
Guillaume is an entrepreneur who built a company focusing on DevOps and SRE expertise. He is a Kubernetes evangelist who works with security in mind, solving problems with elegance. He has created gRPC testing libraries, split clusters for efficiency, completed challenging migrations, overseen DevOps projects, managed teams with Agile, and teaches at an engineering school. Guillaume considers himself an architect and problem solver who loves to dive deep into complex tasks.
Portfolio
Experience
Availability
Preferred Environment
MacOS, GoLand, PyCharm, Kubernetes, AWS Certified Solution Architect, Systemd
The most amazing...
...project I've developed was a Facebook app that got 250,000 users in one month when I was 13 years old.
Work Experience
CEO and CTO
Hiventive
- Oversaw DevOps and architecture while managing projects through Agile methods.
- Developed Helm charts of 20 internal microservices and external microservices as well.
- Delivered multi-cloud, multi-cloud HA monitoring and alerting solutions, multi-cloud Kubernetes, efficient developer environments (Gitpod, Tilt, Skaffold), OPA, multi-cloud PostgreSQL, and multi-cloud S3.
Senior SRE
Spliiit
- Analyzed the existing application architecture using monolith, Redis, MySQL, and SSHFS. Identified bottlenecks for scalability.
- Removed SSHFS for data storage (SPOF and not scalable), moving to S3. Used CDN and Helm Charts for applications and microservices for more-grained scalability.
- Deployed traffic and data to Kubernetes and production migration.
Architect
Socotec
- Carried out the analysis of an existing event-driven solution in a complex application. Studied different solutions according to the app requirements.
- Worked on the POC of the solution improving AuthN/AuthZ and monitoring.
- Contributed to the industrialization of the solution using Kafka to manage millions of events.
Senior SRE
Collectif Energie
- Carried out the analysis of the existing infrastructure to improve application design for multiple tenants.
- Worked on the new cloud architecture design for better scalability and fixed internal issues.
- Set up the infrastructure using GitOps and Kubernetes and deployed it to Scaleway.
Senior SRE
Talend
- Migrated from MongoDB Legacy, multi-clusters, and multi-regions on AWS and Azure to MongoDB Atlas. Split one cluster into many to better handle the load and preparation for sharding. A new schema refactoring was completed for global clustering.
- Completed the migration application for a one-to-many cluster data migration. Built using Go, an Apache Atlas API, and the MongoDB protocol.
- Built a MongoDB exporter using Go to export the app and cluster and Atlas metrics for an internal monitoring solution.
Lead and Senior SRE
L'Oreal
- Created Terraform modules for GCP. Reviewed the existing architecture and report. Worked on front-end, back-end, and data analytics templates, documentation, and best practices.
- Worked on new architecture using Terraform, Git, GitHub, Python, TypeScript, API, and design.
- Developed ready-to-use templates for different teams such as data scientists and front- and back-end developers.
Senior SRE
The Blockchain XDEV
- Reviewed existing architecture to move to a more robust and secure infrastructure, making a new development system for developers.
- Performed migration of existing microservices to a multi-tenant Kubernetes infrastructure.
- Made better development systems for developers, reduced costs for infrastructure, and achieved better results.
Lead Developer of Web and Server
FabZat
- Completed PHP web development with the Symfony 2 framework and API design.
- Served as the systems and network administrator to maintain and upscale according to load.
- Migrated 3D model data for 3D printing and simulation.
Experience
gRPC Test Library
Skills
Languages
Go, Bash Script, SQL, Bash, TypeScript, JavaScript, Python, Java, Embedded C++, Embedded C, PHP 7, Python 3, PHP
Tools
Terraform, Helm, Git, GitLab, GitLab CI/CD, AWS IAM, Amazon EKS, Grafana, Vault, Azure Kubernetes Service (AKS), Jenkins, VPN, Amazon CloudWatch, Amazon Virtual Private Cloud (VPC), Amazon Elastic Container Registry (ECR), Amazon Elastic Container Service (Amazon ECS), Systemd, Kibana, Vagrant, Puppet, Amazon Cognito, JetBrains, GoLand, PyCharm, Ansible, GitHub, VMware, Apache, WireGuard, NPM, PgBouncer, ActiveMQ, SonarQube, Boto 3, Google Kubernetes Engine (GKE), Prisma, Odoo
Paradigms
Microservices, Management, DevOps, Continuous Integration (CI), Continuous Delivery (CD), Test Automation, E2E Testing, Azure DevOps, Scalable Application
Platforms
MacOS, Kubernetes, Linux, Amazon Web Services (AWS), Docker, Unix, Amazon EC2, Azure, Google Cloud Platform (GCP), DigitalOcean, AWS Lambda, CentOS, Embedded Linux, ARM Linux, Harbor, Apache Kafka, OpenStack
Other
Simulations, Software Development, System Architecture Design, Architecture, CI/CD Pipelines, Containerization, Cloud Architecture, Cloud Services, Cloud, Cloud Computing, Infrastructure, Linux Administration, Containers, Infrastructure as Code (IaC), Solution Architecture, Data Structures, Back-end, Cloud Migration, DevOps Engineer, Prometheus, Site Reliability Engineering (SRE), Security, DNS, API Gateways, Kubernetes Operations (kOps), Firewalls, Dynamic Host Configuration Protocol (DHCP), AWS DevOps, High-availability Systems, Identity & Access Management (IAM), Okta, Microsoft Azure, Amazon RDS, GitOps, LXC, Embedded Systems, Research, Technical Writing, Migration, Skaffold, GitHub Actions, ARM Embedded, Signals, Kalman Filtering, Software, Hardware, Algorithms, OpenTelemetry, Metrics, Loki, Single Sign-on (SSO), Scaleway, Networks, Private NPM Modules, Tilt, Cost Reduction & Optimization, Atlas, Strimzi, MinIO, Observation, Vulnerability Identification, Open vSwitch, Windows System Administration, Non-fungible Tokens (NFT), Web Security, SOC 2, APIs, Apache Pulsar, NATS, Scalable Architecture, Backups, High Availability Disaster Recovery (HADR), Apache Atlas
Frameworks
Flux, Next.js, Symfony, gRPC, Cypress, YARN, Nuxt.js
Libraries/APIs
Node.js, Thanos, GitHub API, NSQ.io, Vue
Storage
MongoDB, PostgreSQL, Amazon S3 (AWS S3), NoSQL, Elasticsearch, Amazon DynamoDB, MySQL, OVH, Redis, Datadog, Azure Active Directory
Education
Ph.D. in Computer Science
University of Bordeaux - Bordeaux, France
Master's Degree in Embedded Systems
University of Rennes - Rennes, France
Engineer's Degree in Computer Engineering
ENSSAT - Lannion, France
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